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장대성(Dae Sung Chang),심주현(Joo Hyun Shim),서성준(Seong Jun Seo),송계용(Kye Yong Song),홍창권(Chang Kwun Hong) 대한피부과학회 2001 대한피부과학회지 Vol.39 No.5
Lentigo maligna(LM) is a pigmented lesion that occurs on the sun-exposed skin of an older patients and may become lentigo maligna melanoma(LMM). Currently the percentage of LM type melanoma appears to be increasing, and this rise has been attributed to increasing UV radiation exposure. In addition to UV radiation, estrogen and progesterone, and nonpermanent hair dyes have been proposed as risk factors. A case is a 66-year-old female with a 3 years history of pigmented patch. She had a gradually enlarging irregular bordered brown to black mottled patch on the right temple area. Histologic examination revealed atypical melanocytes along the basal layer of atrophic epidermis, arranged in solitary units and small nests. Perilesional skin showed many scattered melanophages and regressing nevus cell nests which suggested preexisting nevus underwent regressive change. On the basis of clinicopathologic examination we diagnosed this case as lenigo maligna arising from nevocytic nevus and then we removed the lesion by wide surgical excision and could not find any recurrence until now.
철도차량용 유리의 기능 및 적용성에 관한 연구 (A study on the function and application of the glasses for rolling stock)
장대성(Dae-Sung Chang),이흥재(Heung-Jae Lee) 한국철도학회 2011 한국철도학회 학술발표대회논문집 Vol.2011 No.5
In this paper, the area which some glasses of railway vehicle are applied to and the function & requirements of each glass would be studied, a sort of glass & up to date glasses and design propriety of railway vehicle’s glasses were also researched. And then the feasible application of up to date glasses for next developing rolling stock was studied.
증권회사 홈트레이딩 시스템(HTS)의 서비스 품질과 고객만족에 관한 연구
장대성(Dae-Sung Chang),노용휘(Yong-Hwi Noh),김두복(Doo-Bock Kim) 한국컴퓨터정보학회 2012 韓國컴퓨터情報學會論文誌 Vol.17 No.7
이 연구는 홈 트레이딩 시스템(HTS)의 서비스 품질요인을 파악하고, 파악된 품질요인과 HTS사용자의 만족도, 충성도와의 관계, 더 나아가 이런 요인들이 증권회사에 대한 고객 만족도와 충성도에 어떠한 영향을 미치는지에 대해 고찰하였다. (1) HTS 서비스 품질요인으로 PZB(1985)의 확신성, 신뢰성, 유형성, 반응성, 공감성의 다섯 가지 요인을 채택하였으며, (2) 이 요인들은 HTS 사용자 만족도와 증권회사에 대한 만족충성도에 유의한 영향을 미치는 것으로 나타났다. (3) 또한, 홈 트레이딩 시스템에 대한 사용자 만족도는 증권사에 대한 만족충성도에 유의한 영향을 미치는 것으로 나타났다. 본 연구는 현대 증권거래의 필수적 거래수단이 되고 있는 HTS의 품질요인과 이러한 요인들이 HTS와 증권회사에 대한 서비스 만족도와 충성도에 미치는 영향을 파악함으로써 증권회사의 실적 제고와 고객 서비스 향상에 기여하고자 한다. The purpose of this study is to investigate the home trading system (HTS) of the security companies in order to examine the critical factors of HTS service quality and the effect of these factors on HTS customer satisfaction and loyalty. The results show : (1) the quality factors of HTS are assurance, reliability, tangible, responsiveness, and empathy, (2) and these quality factors significantly affect customer satisfaction on HTS and customer satisfaction and loyalty to the security company. (3) Also, customer satisfaction on HTS plays an important role in improving customer satisfaction and loyalty to the security company.
장대성(Dae Sung Chang),김명남(Myeung Nam Kim),홍창권(Chang Kwun Hong),노병인(Byung In Ro) 대한피부과학회 2002 대한피부과학회지 Vol.40 No.2
Pemphigus foliaceus is a rare, relatively mild and chronic variety of pemphigus which is characterized by superficial flaccid bullae which show acantholytic changes in the upper part of the epidermis histopathologically. Present case is a 40-year-old female with a 2 month history of yellowish colored verrucous plaques on the whole scalp. 6 years ago, she had been admitted to our hospital because of nearly generalized erythematous eroded patches, crusted plaques and bullae and diagnosed as pemphigus foliaceus and treated with corticosteroid and methotrexate. 2 months ago, an additional lesion was found on the scalp, where yellowish colored, verrucous surfaced plaques were observed. Histologic examination on the verrucous plaque showed hyperkeratosis, acanthosis and papillomatosis with acantholysis in the granular layer, leading to a subcomeal blister and dyskeratotic granular keratinocytes were seen within the blister. On the basis of clinicopathologic examination we diagnosed as pemphigus foliaceus and then we treated her with prednisolone and the skin lesion had subsided 7 months later. We report a patient of pemphigus foliaceus who was presented with verrucous surfaced plaque, which clinically mimicked pemphigus vegetans.
한국자동차 부품협력업체를 위한 핵심 공급관행에 관한 연구
장대성(Dae Sung Chang),한상도(Sang Do Han),이성진(Sung Jin Lee) 한국경영학회 1999 經營學硏究 Vol.28 No.2
In recent years, there has been growing interest among academics and practitioners in improving the relationship between industrial buyers and suppliers in Korea. This is especially true in the auto industry, where supplier`s manufacturing performance influences the quality of the automobiles assembled by motor companies. The results of this study provide some important implications for managers of both buyers and suppliers of the Korean auto industry. In this study it is found that trust and cooperation are very important to achieve manufacturing performance of suppliers. In addition, JIT supply is identified as very important in improving the manufacturing performance of suppliers. Generally, JIT practices require cooperation and trust between suppliers and buyers. Thus, of all supply practices, trust and cooperation are most critical to improve supplier`s performances. In conclusion, JITII would be the best supply practices because it includes not only JIT supply practices but also inter-organizational information sharing practices based on trust and cooperation.